Suspension-to-membrane-wall heat transfer in a circulating fluidized bed combustor Luan, W.; Bowen, B.D.; Lim, C.J.; Brereton, C.M.H.; Grace, J.R. International Journal of Heat and Mass Transfer 43(7): 1173-1185 2000 0017-9310 https://eurekamag.com/research/078/092/078092456.php